TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 SMOKE GRENADE LAUNCHER(S) MALFUNCTION 0066 00 INITIAL SETUP: M a i n t e n a n c e L e v e l Unit T o o l s a n d S p e c i a l T o o l s Digital Multimeter (WP 0780 00, Item 43) General Mechanic’s Tool Kit (WP 0780 00, Item 29) P e r s o n n e l R e q u i r e d Unit Mechanic Helper (H) E q u i p m e n t C o n d i t i o n Engine stopped/shutdown (see your -10) Carrier blocked (see your -10) Trim vane lowered (see your -10) Power plant front access door open (see your -10) Harness 12313235 removed from launcher arming/firing unit T 1. Check to see if either launcher operates properly. 2. Does either launcher operate properly? TN GO TO BY (PAGE 0066 00-4) Y 1. Remove harness launcher plug (1) from failing launcher. 2. Remove harness circuit 7 (2) and 799 (3) plugs from harness (right launcher) or harness (left launcher) jacks (4). 3. Measure resistance between harness launcher plug (1) pin A (5) and circuit 7 plug (2). 4. Measure resistance between harness launcher plug (1) pin C (6) and circuit 799 plug (3). 5. Does multimeter read 0 ohms for both measurements? YN 1. Replace harness for left or right grenade launcher (WP 0577 00). 2. Verify no faults found. 0066 00-1